Controlled-type liquid-filled vibration isolator
US6631894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/183
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a vibration isolator, stable liquid filling and assembling is obtained by reducing the effect of press-fitting a switching admission pipe. The vibration isolator including a partition having a partition main member and a partition plate member, a main liquid chamber, a first sub liquid chamber, a second sub liquid chamber and a switch chamber, orifices, and a switching admission pipe press-fit in a passage provided in the partition main member. A seal surface in contact with a seal rubber layer on an inner periphery of a cylindrical barrel is formed at around an opening end of a passage in an outer peripheral surface of the partition main member and a pressure-receiving surface broader than the other portion in the outer peripheral surface is provided on a side opposite to the seal surface sandwiching a device axis thereby effecting dispersal of external force during the press-fitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.